how-to: auto update: update doc with console output on failure example

Fix the console output example of the "Failed to Verify image" failure
use case, as it shouldn't print the "Verification of Update Image passed!"
message.

Signed-off-by: Valentina Fernandez <valentina.fernandezalanis@microchip.com>

how-to/re-programming-the-fpga-from-linux.md

@@ -497,7 +497,6 @@ root@mpfs-video-kit:~# echo 1 > /sys/kernel/debug/fpga/microchip_exec_update
 [73947.850574] mpfs-auto-update mpfs-auto-update: Writing the image to the flash at address (1500400)
 [73950.270617] mpfs-auto-update mpfs-auto-update: Running verification of Update Image
 [73950.298524] mpfs-auto-update mpfs-auto-update: Verification of Update Image failed!
-[73950.306355] mpfs-auto-update mpfs-auto-update: Verification of Update Image passed!
 [73950.314199] fpga_manager fpga0: Error after writing image data to FPGA
 [73950.321164] mpfs-auto-update mpfs-auto-update: Failed to write the bitstream
 [73950.328294] mpfs-auto-update mpfs-auto-update: error -EBADMSG: Auto Update failed